The position servo system it USES STD bus module type more CPU structure, mainly for economical nc machine tools.
本位置伺服系统它采用STD总线模块式的多cpu结构，主要面向经济型数控机床。
2
A novel piezoelectric type nozzle flapper hydroelectric servo valve was developed and its control method was researched.
提出了一种新型压电晶片型喷嘴挡板式电液伺服阀，并对其控制方法进行了研究。
3
Application of dynamic high type control method in the servo system of O-E theodolite is discussed in detail in the dissertation. A method differing from the former is brought forward.